{"record":{"id":"b603072224795f7e","repo":"facebook/react","slug":"454","errorCode":"454","errorMessage":"React expected a element (document.body) to exist in the Document but one was not found. React never removes the body for any Document it renders into so the cause is likely in some other script running on this page.","messagePattern":"React expected a element \\(document\\.body\\) to exist in the Document but one was not found\\. React never removes the body for any Document it renders into so the cause is likely in some other script running on this page\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js","lineNumber":4856,"sourceCode":" );\n }\n return documentElement;\n }\n case 'head': {\n const head = ownerDocument.head;\n if (!head) {\n throw new Error(\n 'React expected a element (document.head) to exist in the Document but one was' +\n ' not found. React never removes the head for any Document it renders into so' +\n ' the cause is likely in some other script running on this page.',\n );\n }\n return head;\n }\n case 'body': {\n const body = ownerDocument.body;\n if (!body) {\n throw new Error(\n 'React expected a element (document.body) to exist in the Document but one was' +\n ' not found. React never removes the body for any Document it renders into so' +\n ' the cause is likely in some other script running on this page.',\n );\n }\n return body;\n }\n default: {\n throw new Error(\n 'resolveSingletonInstance was called with an element type that is not supported. This is a bug in React.',\n );\n }\n }\n}\n\nexport function acquireSingletonInstance(\n type: string,\n props: Props,","sourceCodeStart":4838,"sourceCodeEnd":4874,"githubUrl":"https://github.com/facebook/react/blob/eafeac097ba51e1eab809c07102126bd5f8e5425/packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js#L4838-L4874","documentation":"Error \"React expected a element (document.body) to exist in the Document but one was not found. React never removes the body for any Document it renders into so the cause is likely in some other script running on this page.\" thrown in facebook/react.","triggerScenarios":"Thrown at packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js:4856 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"eafeac097ba51e1eab809c07102126bd5f8e5425","analyzedAt":"2026-08-21T22:01:08.818Z","schemaVersion":2},"datasetVersion":"2026-08-21T23:17:16.201Z"}